scholarly journals Culturable endophytic bacteria obtained from Cinchona Ledgeriana Moens. in West Java and its antagonistic effect against Phytophthora sp.

2020 ◽  
Author(s):  
Fauzi Akhbar Anugrah ◽  
Rahmi Masita ◽  
Hanumi Oktyani Rusdi ◽  
Satrio Anggoro Putra
Keyword(s):  
Endophytic Bacteria ◽  
Antagonistic Effect ◽  
West Java ◽  
Cinchona Ledgeriana

scholarly journals Screening of secondary metabolites quinine alkaloid by endophytic bacteria from cinchona plants (Cinchona ledgeriana moens.) root

2021 ◽  
Author(s):  
Fauzi Akhbar Anugrah ◽  
Satrio Anggoro Putra ◽  
Sulisetijono Sulisetijono ◽  
Sitoresmi Prabaningtyas ◽  
Hanumi Oktyani Rusdi
Keyword(s):  
Secondary Metabolites ◽  
Endophytic Bacteria ◽  
Cinchona Ledgeriana

scholarly journals Identification and Characterization of Arbutus Unedo L. Endophytic Bacteria Isolated From Wild and Cultivated Trees for the Biological Control of Phytophthora

2021 ◽  
Author(s):  
João Martins ◽  
Aitana Aires ◽  
Vinicius Casais ◽  
Joana Costa ◽  
Jorge Canhoto
Keyword(s):  
Endophytic Bacteria ◽  
Phytophthora Cinnamomi ◽  
Plant Protection ◽  
Agricultural Practices ◽  
Antagonistic Effect ◽  
Wild Plants ◽  
Growth Promoters ◽  
Arbutus Unedo ◽  
Strawberry Tree

Arbutus unedo L. is a resilient tree with a circum-Mediterranean distribution. Besides its ecological relevance, it is vital for local economies as a fruit tree. Several microorganisms are responsible for strawberry tree diseases leading to production constrictions. Thus, the development of alternative plant protection strategies is necessary and bacteria endophytes may increase their host overall fitness and productivity. As agricultural practices are a driving factor of microbiota, this paper aimed to isolate, identify and characterize endophytic bacteria from strawberry tree leaves from plants growing spontaneously in a natural environment as well as from plants growing on orchards. 62 endophytes were isolated from leaves and identified as Bacillus, Paenibacillus, Pseudomonas, Sphingomonas and Staphylococcus. Although a slightly higher number of species was found in wild plants, no differences in terms of diversity indexes were found. Sixteen isolates were tested in vitro for their antagonistic effect against A. unedo mycopathogens. B. cereus was the most effective antagonist causing a growth reduction of 20% in Glomerella cingulata and 40% in Phytophthora cinnamomi and Mycosphaerella aurantia. Also, several endophytic isolates exhibited plant growth-promoting potential. This study provides insights into the diversity of endophytic bacteria in A. unedo leaves and their potential role as growth-promoters and pathogen antagonists.

scholarly journals Identification and Characterization of Arbutus unedo L. Endophytic Bacteria Isolated from Wild and Cultivated Trees for the Biological Control of Phytophthora cinnamomi

Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1569
Author(s):  
João Martins ◽  
Aitana Ares ◽  
Vinicius Casais ◽  
Joana Costa ◽  
Jorge Canhoto
Keyword(s):  
Endophytic Bacteria ◽  
Phytophthora Cinnamomi ◽  
Plant Protection ◽  
Agricultural Practices ◽  
Antagonistic Effect ◽  
Wild Plants ◽  
Growth Promoters ◽  
Arbutus Unedo ◽  
Strawberry Tree

Arbutus unedo L. is a resilient tree with a circum-Mediterranean distribution. Besides its ecological relevance, it is vital for local economies as a fruit tree. Several microorganisms are responsible for strawberry tree diseases, leading to production constrictions. Thus, the development of alternative plant protection strategies is necessary, such as bacterial endophytes, which may increase their host’s overall fitness and productivity. As agricultural practices are a driving factor of microbiota, this paper aimed to isolate, identify and characterize endophytic bacteria from strawberry tree leaves from plants growing spontaneously in a natural environment as well as from plants growing in orchards. A total of 62 endophytes were isolated from leaves and identified as Bacillus, Paenibacillus, Pseudomonas, Sphingomonas and Staphylococcus. Although a slightly higher number of species was found in wild plants, no differences in terms of diversity indexes were found. Sixteen isolates were tested in vitro for their antagonistic effect against A. unedo mycopathogens. B. cereus was the most effective antagonist causing a growth reduction of 20% in Glomerella cingulata and 40% in Phytophthora cinnamomi and Mycosphaerella aurantia. Several endophytic isolates also exhibited plant growth-promoting potential. This study provides insights into the diversity of endophytic bacteria in A. unedo leaves and their potential role as growth promoters and pathogen antagonists.

Studies on suppression of bacterial leaf blight by rice endophytic bacteria under field condition

2020 ◽  
Vol 57 (1) ◽  
pp. 64-69
Author(s):  
K Kavitha ◽  
P Nagamani ◽  
P Madhu Sudhan ◽  
K Viswanath ◽  
NP Eswara Reddy
Keyword(s):  
Field Condition ◽  
Endophytic Bacteria ◽  
Foliar Application ◽  
Inhibition Zone ◽  
Antagonistic Effect ◽  
Leaf Blight ◽  
Bacterial Leaf Blight ◽  
Diffusion Method ◽  
Bacterial Isolates ◽  
Zone Formation

A total of 45 endophytic bacterial isolates were isolated from the healthy rice cultivars viz; MTU 1010, BPT 5204 and NLR 34449 cultivated in Nellore and Chittoor districts of Andhra Pradesh. All the isolated endophytic bacterial isolates were evaluated for their antagonistic effect against bacterial leaf blight (BLB) pathogen Xanthomonas oryzae pv. oryzae by agar well diffusion method. The diameter of inhibition zone formation ranged from 0 mm to 16.8 mm. Among 45 isolates, EMP-5 and EBK-3 isolates showed highest antagonistic effect with inhibition zone of 16.8 mm and 16.6 mm, respectively. Isolate EMP 5 was used for the management of BLB under field condition. Among all the treatments, treatment T5 (i.e., seed treatment with EMP-5 @ 109 cells ml-1 + foliar application of EMP-5 @109 cells ml-1) exhibited highest reduction in disease index (4.92 %), increased plant growth promoting ability with plant height of 80.8 cm, increase in the no. of effective tillers (97.4 %), grain yield (5340 kg ha-1) and straw yield (6013 kg ha-1) over the untreated control. The results strongly emphasize that endophytic bacteria (EMP-5) could be efficiently used for management of bacterial leaf blight.

scholarly journals Diversity of endophytic bacteria and microfungi in Syzygium cumini fruit from West Java, Indonesia

2021 ◽  
Vol 22 (9) ◽  
Author(s):  
IDA INDRAWATI ◽  
NIA ROSSIANA ◽  
Muhammad Faizal Fathurrohim
Keyword(s):  
Endophytic Bacteria ◽  
Fungal Endophytes ◽  
Candida Guilliermondii ◽  
Syzygium Cumini ◽  
Isolation And Identification ◽  
West Java ◽  
Aspergillus Sp ◽  
Bacteria And Fungi ◽  
Endophyte Fungi ◽  
Harmful Effects

Abstract. Rossiana N, Fathurrohim MF, Indrawati I. 2021. Diversity of endophytic bacteria and microfungi in Syzygium cumini fruit from West Java, Indonesia. Biodiversitas 22: 3943-3948. Syzygium cumini L. Skells is a native evergreen tropical tree in Southeast Asia belong to the Myrtaceae family, known as the Java plum, jambul, jambolan, jamblang, or jamun. The bacterial and fungal endophytes associated with fruit have not been determined and functionally characterized. The endophytic microbes live inside the surface-sterilized fruits and have no visibly harmful effects on the plants. The purposes of the study were to isolate, characterize, and determine the diversity of endophytic bacteria and fungi in S. cumini fruit. The endophytes from S. cumini fruit were observed morphologically for identification. The result of isolation and identification showed there are four bacterial isolate endophytes (B. cereus, B. subtilis, B. megaterium, and Bacillus sp.) and four fungal endophytes (Candida guilliermondii, Penicillium sp., Mycelia sterilia, and Aspergillus sp.) isolated from S. cumini fruit.   Keywords:Biodiversity, Bacterial endophyte, Fungi endophyte, Jamblang

Quenching of quorum coordination by potent endophytic bacteria harbored in Cannabis sativa L. plants

Planta Medica ◽  
2014 ◽  
Vol 80 (16) ◽  
Author(s):  
O Kayser ◽  
P Kursari ◽  
S Kusari ◽  
M Lamshoeft ◽  
M Spiteller
Keyword(s):  
Endophytic Bacteria ◽  
Cannabis Sativa

Identification of Endophytic Bacteria from Micropropagated Yacon (Smallanthus sonchifolius) Growing under Autotrophic and Heterotrophic Systems

Planta Medica ◽  
2008 ◽  
Vol 74 (03) ◽  
Author(s):  
RM Moraes ◽  
IS de Melo ◽  
VC Joshi ◽  
J Sumyanto ◽  
V Samoylenko ◽  
...  
Keyword(s):  
Endophytic Bacteria ◽  
Smallanthus Sonchifolius
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